21098200

素因数分解:

$2^3\times 5^2\times {\mathrm{105491}}^1$

素因数の和:105507

約数の個数: 24

約数和(自身を含む): 49053780

約数和(自身を除く): 27955580

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105491, 210982, 421964, 527455, 843928, 1054910, 2109820, 2637275, 4219640, 5274550, 10549100, 21098200]

約数ペア:

[(1, 21098200), (2, 10549100), (4, 5274550), (5, 4219640), (8, 2637275), (10, 2109820), (20, 1054910), (25, 843928), (40, 527455), (50, 421964), (100, 210982), (200, 105491)]